setSelection - Spreadsheet_Excel_Writer

[ornitorrinco123]

Hi. I am using Spreadsheet_Excel_Writer 0.9.1.
And the function setSelection :
void setSelection( integer $first_row, integer $first_column, integer $last_row, integer $last_column)
don't select multicell, only one cell. Wath a doing wrong?
I want multicell select and manipulate the selection.

$libro =& new Spreadsheet_Excel_Writer();
$hoja =& $libro->addWorksheet("Lista Alumnos");
if (PEAR::isError($hoja)) {die($hoja->getMessage());}
.....
$hoja->write(2,2, "-- bla, bla --");
.....
$hoja->hideGridlines();
$hoja->setMarginRight(0.4);
$hoja->setMarginLeft(0.5);
$hoja->setMarginTop(0.4);
$hoja->setMarginBottom(0.4);
$hoja->select();
$hoja->setFirstSheet();
$hoja->setSelection(0,2,9,2);

$file = "lista.xls";
$libro->send($file);
$libro->close();

thanks